ICS1531 Datasheet, PDF (49/76 Pages) Integrated Circuit Systems – Triple 8-bit MSPS A/D Converters with Line-Locked Clock Generator

ICS1531 Data Sheet - Preliminary
Chapter 6 Register Set
6.5.35 Register 33h: B_COARSE
The B_COARSE Register is the first adjustment for the blue channel of the ADC. It is used to coarsely
adjust the analog signal used by the ADC. (See also Section 6.5.38, “Register 36h: B_FINE”.)
Table 6-34. B_COARSE Register
Bit Bit Name
Bit Definition
Ac- Spec. Re-
cess Func. set
33:7- Reserved
33:6
Reserved.
• See Section 6.1, “Reserved Bits”.
• These bits can be programmed to ‘0’.
–
–
0
33:5 Reserved
Reserved.
• See Section 6.1, “Reserved Bits”.
• This bit must be programmed to ‘1’.
–
–
1
33:4- Reserved
33:2
Reserved.
• See Section 6.1, “Reserved Bits”.
• These bits can be programmed to ‘0’.
–
–
0
33:1- B_Coarse_ADJ Blue Coarse (Gain) Adjust [1-0].
R/W
–
0
33:0 [1-0]
These bits adjust the blue channel of the ADC by adjusting the
gain of the video amplifier for the analog signal used by the
ADC.
• 0 = The gain is 1.0 (default).
• 1 = The gain is 1.2.
• 2 = The gain is 1.4 (typical).
• 3 = The gain is 1.6.
ICS1531 Rev N 12/1/99
Copyright © 1999, Integrated Circuit Systems, Inc.
All rights reserved.
49
December, 1999